* [RESEND V2 0/2] Add DesignWare IP support to simple reset
@ 2019-07-23 15:17 Luis Oliveira
2019-07-23 15:17 ` [RESEND V2 1/2] dt-bindings: Document the DesignWare IP reset bindings Luis Oliveira
2019-07-23 15:17 ` [RESEND V2 2/2] reset: Add DesignWare IP support to simple reset Luis Oliveira
0 siblings, 2 replies; 4+ messages in thread
From: Luis Oliveira @ 2019-07-23 15:17 UTC (permalink / raw)
To: p.zabel, robh+dt, mark.rutland, linux-kernel, devicetree
Cc: Joao.Pinto, Luis Oliveira
This patch series adds a reset-simple compatible string for DesignWare
IPs allowing active high and low resets inputs.
Also adds the corresponding documentation.
Gustavo Pimentel (1):
reset: Add DesignWare IP support to simple reset
Luis Oliveira (1):
dt-bindings: Document the DesignWare IP reset bindings
.../devicetree/bindings/reset/snps,dw-reset.txt | 30 ++++++++++++++++++++++
drivers/reset/Kconfig | 2 +-
drivers/reset/reset-simple.c | 3 +++
3 files changed, 34 insertions(+), 1 deletion(-)
create mode 100644 Documentation/devicetree/bindings/reset/snps,dw-reset.txt
--
2.7.4
^ permalink raw reply [flat|nested] 4+ messages in thread
* [RESEND V2 1/2] dt-bindings: Document the DesignWare IP reset bindings
2019-07-23 15:17 [RESEND V2 0/2] Add DesignWare IP support to simple reset Luis Oliveira
@ 2019-07-23 15:17 ` Luis Oliveira
2019-08-06 13:33 ` Philipp Zabel
2019-07-23 15:17 ` [RESEND V2 2/2] reset: Add DesignWare IP support to simple reset Luis Oliveira
1 sibling, 1 reply; 4+ messages in thread
From: Luis Oliveira @ 2019-07-23 15:17 UTC (permalink / raw)
To: p.zabel, robh+dt, mark.rutland, linux-kernel, devicetree
Cc: Joao.Pinto, Luis Oliveira, Gustavo Pimentel
This adds documentation of device tree bindings for the
DesignWare IP reset controller.
Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Signed-off-by: Luis Oliveira <luis.oliveira@synopsys.com>
Reviewed-by: Rob Herring <robh@kernel.org>
---
Changelog
-no changes
.../devicetree/bindings/reset/snps,dw-reset.txt | 30 ++++++++++++++++++++++
1 file changed, 30 insertions(+)
create mode 100644 Documentation/devicetree/bindings/reset/snps,dw-reset.txt
diff --git a/Documentation/devicetree/bindings/reset/snps,dw-reset.txt b/Documentation/devicetree/bindings/reset/snps,dw-reset.txt
new file mode 100644
index 0000000..f94f911
--- /dev/null
+++ b/Documentation/devicetree/bindings/reset/snps,dw-reset.txt
@@ -0,0 +1,30 @@
+Synopsys DesignWare Reset controller
+=======================================
+
+Please also refer to reset.txt in this directory for common reset
+controller binding usage.
+
+Required properties:
+
+- compatible: should be one of the following.
+ "snps,dw-high-reset" - for active high configuration
+ "snps,dw-low-reset" - for active low configuration
+
+- reg: physical base address of the controller and length of memory mapped
+ region.
+
+- #reset-cells: must be 1.
+
+example:
+
+ dw_rst_1: reset-controller@0000 {
+ compatible = "snps,dw-high-reset";
+ reg = <0x0000 0x4>;
+ #reset-cells = <1>;
+ };
+
+ dw_rst_2: reset-controller@1000 {i
+ compatible = "snps,dw-low-reset";
+ reg = <0x1000 0x8>;
+ #reset-cells = <1>;
+ };
--
2.7.4
^ permalink raw reply related [flat|nested] 4+ messages in thread
* [RESEND V2 2/2] reset: Add DesignWare IP support to simple reset
2019-07-23 15:17 [RESEND V2 0/2] Add DesignWare IP support to simple reset Luis Oliveira
2019-07-23 15:17 ` [RESEND V2 1/2] dt-bindings: Document the DesignWare IP reset bindings Luis Oliveira
@ 2019-07-23 15:17 ` Luis Oliveira
1 sibling, 0 replies; 4+ messages in thread
From: Luis Oliveira @ 2019-07-23 15:17 UTC (permalink / raw)
To: p.zabel, robh+dt, mark.rutland, linux-kernel, devicetree
Cc: Joao.Pinto, Gustavo Pimentel, Luis Oliveira
From: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
The reset-simple driver can be now used on DesignWare IPs by
default by selecting the following compatible strings:
- snps,dw-high-reset for active high resets inputs
- snps,dw-low-reset for active low resets inputs
Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Signed-off-by: Luis Oliveira <luis.oliveira@synopsys.com>
---
Changelog
-no changes
drivers/reset/Kconfig | 2 +-
drivers/reset/reset-simple.c | 3 +++
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/reset/Kconfig b/drivers/reset/Kconfig
index 2c8c23d..2ee69f2 100644
--- a/drivers/reset/Kconfig
+++ b/drivers/reset/Kconfig
@@ -117,7 +117,7 @@ config RESET_QCOM_PDC
config RESET_SIMPLE
bool "Simple Reset Controller Driver" if COMPILE_TEST
- default ARCH_STM32 || ARCH_STRATIX10 || ARCH_SUNXI || ARCH_ZX || ARCH_ASPEED
+ default ARCH_STM32 || ARCH_STRATIX10 || ARCH_SUNXI || ARCH_ZX || ARCH_ASPEED || ARC
help
This enables a simple reset controller driver for reset lines that
that can be asserted and deasserted by toggling bits in a contiguous,
diff --git a/drivers/reset/reset-simple.c b/drivers/reset/reset-simple.c
index 77fbba3..79e73be 100644
--- a/drivers/reset/reset-simple.c
+++ b/drivers/reset/reset-simple.c
@@ -129,6 +129,9 @@ static const struct of_device_id reset_simple_dt_ids[] = {
.data = &reset_simple_active_low },
{ .compatible = "aspeed,ast2400-lpc-reset" },
{ .compatible = "aspeed,ast2500-lpc-reset" },
+ { .compatible = "snps,dw-high-reset" },
+ { .compatible = "snps,dw-low-reset",
+ .data = &reset_simple_active_low },
{ /* sentinel */ },
};
--
2.7.4
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [RESEND V2 1/2] dt-bindings: Document the DesignWare IP reset bindings
2019-07-23 15:17 ` [RESEND V2 1/2] dt-bindings: Document the DesignWare IP reset bindings Luis Oliveira
@ 2019-08-06 13:33 ` Philipp Zabel
0 siblings, 0 replies; 4+ messages in thread
From: Philipp Zabel @ 2019-08-06 13:33 UTC (permalink / raw)
To: Luis Oliveira, robh+dt, mark.rutland, linux-kernel, devicetree
Cc: Joao.Pinto, Gustavo Pimentel
Hi Luis,
On Tue, 2019-07-23 at 17:17 +0200, Luis Oliveira wrote:
> This adds documentation of device tree bindings for the
> DesignWare IP reset controller.
>
> Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
> Signed-off-by: Luis Oliveira <luis.oliveira@synopsys.com>
> Reviewed-by: Rob Herring <robh@kernel.org>
Thank you, both applied to reset/next.
regards
Philipp
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2019-08-06 13:33 UTC | newest]
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2019-07-23 15:17 [RESEND V2 0/2] Add DesignWare IP support to simple reset Luis Oliveira
2019-07-23 15:17 ` [RESEND V2 1/2] dt-bindings: Document the DesignWare IP reset bindings Luis Oliveira
2019-08-06 13:33 ` Philipp Zabel
2019-07-23 15:17 ` [RESEND V2 2/2] reset: Add DesignWare IP support to simple reset Luis Oliveira
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